Operation and control unit for a computer



FIG. 1 is a front elevational view thereof;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a left side elevational view thereof, the right side being a mirror image;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a cross-sectional view thereof as taken along line 6--6 of FIG. 1;

FIG. 7 is a top, front, right side perspective view thereof. 

The ornamental design for an operation and control unit for a computer, as shown and described. 